Chair control



FIG. 1 is a top view of a chain control showing my new design.

FIG. 2 is a side view thereof.

FIG. 3 is an underneath view thereof.

FIG. 4 is a perspective view of the bottom and side thereof.

FIG. 5 is an end view thereof.

FIG. 6 is a front end view thereof.

The side of the chair control unit not shown in FIG. 2 is a mirror image of the side shown. 

The ornamental design for a chair control, substantially as shown and described. 